Permanent Magnet Technology for Aerospace

DEMONSTRATING EXPERTISE AND CAPABILITY

Denis Ferranti Group has developed high power motor and converter technology for aeronautical applications.

The programme followed a typical aerospace development route and was subsequently tested on Denis Ferranti’s site and at the customer’s facilities. The technology is currently being positioned for serial application.

Requirements

High availability
Mitigations to fire
High power up to 180 kW
High efficiency > 90%
Low mass < 28kg

To answer the requirement we developed an integrated machine and converter.

Converter

Multiplex converter in line with ARP 4754 and ARP 4761
450V DC
Fire and short circuit protection
Health monitoring
Bespoke control system using FOC, field weakening and 3rd harmonic injection algorithms
CAN and ARINC compatible
Mass of 18 kg

Electric Machine

Innovative permanent magnet electric machine
High speed
Multiple barrier insulation systems

The technology is under development for permit to y and serial application.